Probe:	Rala cDNA1
Probe preparation:	Antisense RNA
Assay notes:	These data are described in the text.

Structure	Level	Pattern	Image	Note
TS15: cardiac muscle tissue	Present
TS15: endocardial cushion	Present
TS15: future brain	Present
TS15: gut	Present
TS15: lens placode	Present	Regionally restricted		Expression is in the retina and lens.
TS15: optic cup	Present	Regionally restricted		Expression is in the retina and lens.

Structure	Level	Pattern	Image	Note
TS17: cardiac muscle tissue	Present
TS17: endocardial cushion	Present
TS17: heart	Present
TS17: limb	Present
TS17: head	Present	Regionally restricted		Expression is in craniofacial structures.
TS17: lens pit	Present			Expression is in the retina and lens.
TS17: optic cup	Present			Expression is in the retina and lens.

Structure	Level	Pattern	Image	Note
TS19: cardiac muscle tissue	Present
TS19: endocardial cushion	Present
TS19: lens vesicle	Present
TS19: retina	Present
TS19: surface ectoderm	Present

Structure	Level	Pattern	Image	Note
TS20: brain	Present			Stronger expression is in the paraolivary nucleus and future CA3 region of the hippocampus.
TS20: cardiac muscle tissue	Present
TS20: choroid plexus	Present
TS20: endocardial cushion	Present
TS20: gonad	Present
TS20: intestine epithelium	Present
TS20: lens vesicle	Present
TS20: lung mesenchyme	Present
TS20: retina	Present
TS20: skin	Present
TS20: mesonephros	Present	Regionally restricted		Expression is in tubules.
TS20: metanephros	Present	Regionally restricted		Expression is in tubules.
TS20: jaw primordium	Present	Regionally restricted		Expression is in the epithelial components and mesenchyme of the tooth germs.

Structure	Level	Pattern	Image	Note
TS22: cardiac muscle tissue	Present
TS22: choroid plexus	Present
TS22: dorsal root ganglion	Present
TS22: endocardial cushion	Present
TS22: facial ganglion	Present
TS22: gonad	Present
TS22: intestine epithelium	Present
TS22: lens	Present
TS22: mesonephros	Present
TS22: metanephros	Present
TS22: retina	Present
TS22: skin	Present
TS22: tooth	Present
TS22: trigeminal ganglion	Present
TS22: hippocampus	Present	Regionally restricted		Expression is in the CA3 region.
TS22: brain	Present	Regionally restricted		Expression is in the paraolivary nucleus.
TS22: epidermis	Strong

Structure	Level	Pattern	Image	Note
TS24: Bowman's capsule of maturing renal corpuscle	Present
TS24: cardiac muscle tissue	Present
TS24: choroid plexus	Present
TS24: dorsal root ganglion	Present
TS24: endocardial cushion	Present
TS24: facial ganglion	Present
TS24: gonad	Present
TS24: intestine epithelium	Present
TS24: lens	Present
TS24: mesonephros	Present
TS24: retina	Present
TS24: skin	Present
TS24: tooth	Present
TS24: trigeminal ganglion	Present
TS24: vibrissa epidermal component	Present
TS24: brain	Present	Regionally restricted		Expression is in the paraolivary nucleus.
TS24: hippocampus	Present	Regionally restricted		Expression is in the CA3 region.
TS24: hair follicle	Present	Regionally restricted		Expression is in the epidermal component.
TS24: epidermis	Strong
TS24: cortical renal tubule	Absent